Viewsonic VA1703W-1 Schematic
Service Manual
ViewSonic VA1703w-1
VA1703wb-1
Model No. VS11534
17” Color TFT LCD Display
(VA1703w-1_VA1703wb-1_SM Rev. 1a Nov. 2006)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583
Copyright
Copyright © 2006 by ViewSonic Corporation. All rights reserved. No part of this publication
may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any
language or computer language, in any form or by any means, electronic, mechanical, magnetic,
optical, chemical, manual or otherwise, without the prior written permission of ViewSonic
Corporation.
Disclaimer
ViewSonic makes no representations or warranties, either expressed or implied, with respect to
the contents hereof and specifically disclaims any warranty of merchantability or fitness for any
particular purpose. Further, ViewSonic reserves the right to revise this publication and to make
changes from time to time in the contents hereof without obligation of ViewSonic to notify any
person of such revision or changes.
Trademarks
Optiquest is a registered trademark of ViewSonic Corporation.
ViewSonic is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respective owners.
Revision History
Revision SM Editing Date ECR Number Description of Changes Editor
1a 11/29/2006 Initial Release Jamie Chang
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TABLE OF CONTENTS
1. Precautions and Safety Notices 1
2. Specification 4
3. Front Panel Function Control Description 12
4. Circuit Description 18
5. Adjustment Procedure 19
6. Troubleshooting Flow Chart 37
7. Block Diagram 39
8. Schematic Diagrams 40
9. PCB Layout Diagrams 48
10. Exploded Diagram and Exploded Parts List 52
11. Recommended Spare Parts List 56
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1. Precautions and Safety Notices
1-1. Appropriate Operation
(1) Turn off the product before cleaning.
(2) Use only a dry soft cloth when cleaning the LCD panel surface.
(3) Use a soft cloth soaked with mild detergent to clean the display housing.
(4) Disconnect the power plug from AC outlet if the product is not used for a long period of
time.
(5) If smoke, abnormal noise, or strange odor is present, immediately switch the LCD
display off.
(6) Do not touch the LCD panel surface with sharp or hard objects.
(7) Do not place heavy objects on the LCD display, video cable, or power cord.
(8) Do not use abrasive cleaners, waxes or solvents for your cleaning.
(9) Do not operate the product under the following conditions:
- Extremely hot, cold or humid environment.
- Areas susceptible to excessive dust and dirt.
- Near any appliance generating a strong magnetic field.
- Place in direct sunlight.
1-2. Caution
No modification of any circuit should be attempted. Service work should only be
performed after you are thoroughly familiar with all of the following safety checks and
servicing guidelines.
1-3. Safety Check
Care should be taken while servicing this LCD display. Because of the high voltage
used in the inverter circuit, the voltage is exposed in such areas as the associated
transformer circuits.
1-4. Power Supply Requirements
The external AC power operating range shall be from 90 to 264Vac
1-5. LCD Module Handling Precautions
1-5-1. Handling Precautions
(1) Since front polarizer is easily damaged, pay attention not to scratch it.
(2) Be sure to turn off power supply when inserting or disconnecting from input
connector.
(3) Wipe off water drop immediately. Long contact with water may cause discoloration or
spots.
(4) When the panel surface is soiled, wipe it with absorbent cotton or other soft cloth.
(5) Since the panel is made of glass, it may break or crack if dropped or bumped on hard
surface.
(6) Since CMOS LSI is used in this module, take care of static electricity and insure
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human earth when handling.
(7) Do not open nor modify the Module Assembly.
(8) Do not press the reflector sheet at the back of the module to any directions.
(9) In case if a Module has to be put back into the packing container slot after once it was
taken out from the container, do not press the center of the CCFL Reflector edge.
Instead, press at the far ends of the CFL Reflector edge softly. Otherwise the TFT
Module may be damaged.
(10) At the insertion or removal of the Signal Interface Connector, be sure not to rotate nor
tilt the Interface Connector of the TFT Module.
(11) After installation of the TFT Module into an enclosure (LCD monitor housing, for
example),
do not twist nor bend the TFT Module even momentary. At designing the enclosure, it
should be taken into consideration that no bending/twisting forces are applied to the
TFT Module from outside. Otherwise the TFT Module may be damaged.
(12) Cold cathode fluorescent lamp in LCD contains a small amount of mercury. Please
follow local ordinances or regulations for disposal.
(13) Small amount of materials having no flammability grade is used in the LCD module.
The LCD module should be supplied by power complied with requirements of Limited
Power Source, or be applied exemption.
(14) The LCD module is designed so that the CFL in it is supplied by Limited Current
Circuit.
Do not connect the CFL in Hazardous Voltage Circuit.
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1-5-2. Handling and Placing Methods
Correct Methods: Incorrect Methods:
1.Take out the monitor with cushions 1.Taking out the monitor by grasping the LCD
panel. That may cause ”Mura”
2.Only touch the metal frame of the LCD panel
or the front cover of the monitor. Do not
touch the surface of the polarizer.
2.Surface of the LCD panel is pressed by
fingers and that may cause ”Mura”.
3.Place the monitor on a clean and soft foam
pad.
3.Placing the monitor on foreign objects. That
could scratch the surface of the panel or
cause “Mura”.
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2. Specification
A
Product definition and specification
Product Name VA1703w/wb-1
Model Number VS11534
English, French, German, Italian, Spanish, Finnish,
OSD Languages
TFT LCD Panel and Model # HSD 170MGW1-A
Scalar MST TSUM56AK-1
Input Signal Analog x1
Sync Compatibility Separate Sync
Adapter Internal Power Board
Power Cable
nalog Cable (1.8 m, black), with PC 2001 and Hot Plug
Japanese, Traditional Chinese, Simplified Chinese,
Russian
Yes,
refer to APPENDIX B: Power Cable
Yes
Detect &DDC
DVI-D Cable(1.8m, black) with PC 2001 No
Audio Cable(1.8m, black) with PC 2001 NO
MIC Cable(1.8m, black) with PC 2001 No
USB Cable (V2.0) No
ViewSonic CD Wizard
ViewSonic Quick Start Guide
PerfectSuite CD No
Screen Protector Mylar Yes
Foot Protector plastic No
Service Insert For Region code = M units only
Response Time Sticker For Region code = M/E/U/G units only
Energy Star Sticker Yes
Warranty Sticker For Region code = G units only
Arabic, English, Finnish, Spanish, German, Italian,
Japanese, Swedish, Polish, Korean, Portuguese, Russian,
Turkish , French, Czech, Hungarian, Simplified Chinese,
Traditional Chinese
(Detached cable; refer the Appendix A)
Warranty Card For Region code = G units only
Warranty Carton Sticker For Region code = G units only
PE bag of Carton For Region code = G units only
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1 GENERAL specification
Test Resolution & Frequency 1440x900 @ 60Hz
Test Image Size Full Size
Contrast and Brightness Controls
Factory Default:
Contrast = 70%, Brightness = 100%
2 VIDEO INTERFACE
Input Connector (refer the Appendix A) Analog = DB-15
Default Input Connector Defaults to the first detected input
Video Cable Strain Relief Equal to twice the weight of the monitor for five minutes
Video Cable Connector Pin out Refer to Appendix A; Compliant DDC/2B
Video Signals
Video Impedance 75 Ohms (Analog),
Maximum PC Video Signal 950 mV with no damage to monitor
Maximum Mac Video Signal 1250 mV with no damage to monitor
Sync Signals TTL
DDC 2B Compliant with Revision 1.3
Sync Compatibility Separate Sync
Video RGB (Analog)
Separate Sync
Video Compatibility
Resolution Compatibility Refer to Segment 4-5
Exclusions Not compatible with interlaced video
Shall be compatible with all PC type computers, Macintosh
computers, and after market video cards
3 USB INTERFACE
No USB interface
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4 POWER SUPPLY
Internal Power Supply Part Number FSP032-2P101 / Delta DAC-12M051
Input Voltage Range 90 to 264 VAC
Input Frequency Range 47 to 63 Hertz
Short Circuit Protection Output can be shorted without damage
Over Current Protection 6.0 A typical at 5 VDC
Leakage Current 0.75mA (Max) at 264VAC / 50Hz
Efficiency (at 115VAC Full Load)
Fuse Internal and not user replaceable
Power Output 33 Watts (typ)
Ripple and Noise
Max Input AC Current 1.3 Arms @ 90VAC, 0.65 Arms @264VAC
Inrush Current (Cold Start) 60 A (max) @ 110VAC
Power Supply Cold Start
Power Supply Transient Immunity
Power Supply Line Surge Immunity
Power Supply Missing Cycle Immunity
75% TYPICAL AT 115VAC FULL LOAD
Ripple: <3%
Noise: <1%
Shall start and function properly when under full load, with all
combinations of input voltage, input frequency, and operating
temperature.
Shall be able to withstand an ANSI/IEEE C62.41-1980 6000V 200
ampere ring wave transient test with no damage.
Shall be able to withstand 1.5 times nominal line voltage for one
cycle with no damage.
Shall be able to function properly, without reset or visible screen
artifacts, when ½ cycle of AC power is randomly missing at
nominal input.
The power supply shall not produce audible noise that would be
detectable by the user. Audible shall defined to be in
Power Supply Acoustics
Power Saving Operation(Method) VESA DPMS Signaling
Power Consumption
Recovery Time On Mode = N/A, Active Off < 3 sec
compliance with ISO 7779 (DIN EN27779:1991) Noise
measurements of machines acoustics. Power Switch noise shall
not be considered.
Mode LED
On Green 21W (Typ) / 25W
Active off Amber <2W
Off Off <1W
Power
Consumption
(max)
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5 ELECTRICAL REQUIREMENT
Horizontal / Vertical Frequency
Horizontal Frequency
Vertical Refresh Rate
24 – 70 kHz
50 – 75 Hz
Maximum Pixel Clock 135 MHz
Sync Polarity Independent of sync polarity
Timing Table
Digital - TMDS
SOG
DMT
DMT
For MAC
DMT
DMT
DTV
DTV
DMT
DMT
DMT
DMT
MAC
DMT
DMT
DMT
DMT
For MAC
For SUN
DTV
DTV
DMT;
DMT;
DMT
DMT
DMT
DMT
DMT
Item Timing
1 640 x 350 @ 70 Hz, 31.5 KHz
2 640 x 400 @ 60 Hz, 31.5 KHz
3 640 x 400 @ 70 Hz, 31.5 KHz
4 640 x 480 @ 50 Hz, 24.7 KHz
5 640 x 480 @ 60 Hz, 31.5 KHz
6 640 x 480 @ 67 Hz, 35 KHz
7 640 x 480 @ 72 Hz, 37.9 KHz
8 640 x 480 @ 75 Hz, 37.5 KHz
9 720 x 400 @ 70 Hz, 31.5 KHz
10 720 x 480 @ 60 Hz, 31.5 KHz
11 720 x 576 @ 50 Hz, 31.3 KHz
12 800 x 600 @ 56 Hz, 35.1 KHz
13 800 x 600 @ 60 Hz, 37.9 KHz
14 800 x 600 @ 72 Hz, 48.1 KHz
15 800 x 600 @ 75 Hz, 46.9 KHz
16 832 x 624 @ 75 Hz, 49.7 KHz
17 1024 x 768 @ 50 Hz, 39.6 KHz
18 1024 x 768 @ 60 Hz, 48.4 KHz
19 1024 x 768 @ 70 Hz, 56.5 KHz
21 1024 x 768 @ 75 Hz, 60 KHz
23 1152 x 864 @ 75 Hz, 67.5 KHz
24 1152 x 870 @ 75 Hz, 68.7 KHz
25 1152 x 900 @ 67 Hz, 62.5 KHz
26 1280 x 720 @ 50 Hz, 37.5 KHz
27 1280 x 720 @ 60 Hz, 45 KHz
28 1280 x 768 @ 50 Hz, 39.6 KHz
29 1280 x 768 @ 60 Hz, 47.8 KHz
30 1280 x 768 @ 75 Hz, 60.3 KHz
31 1280 x 960 @ 50 Hz, 49.4 KHz
32 1280 x 960 @ 60 Hz, 59.7 KHz
33 1280 x 960 @ 75 Hz, 75.2 KHz
34 1280 x 1024 @ 50 Hz, 52.7 KHz
35 1280 x 1024 @ 60 Hz, 64 KHz
36 1280 x 1024 @ 75 Hz, 80 KHz
37 1440 x 900 @ 60 Hz 55.9 KHz
38 1440 x 900 @ 75 HZ 70.6 KHz
*1. Tolerance ≧ ±2KHz (if no overlapping issue)
Analog
Composite
Separated
Remark
*2. Any timing not in the list, it should display as normal or show on “OUT OF RANGE” OSD message without
blanking.
*3. The image quality of 85Hz mode might be worse than 75Hz.
*4. The image quality 1280x960@75HZ and 1280x1024@75Hz mode might be worse than other mode.
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7 AUDIO INTERFACE (SPEAKER SPECIFICATION)
No USB interface
8 TFT LCD PANEL
Panel Characteristics :
1st Source Panel
Model number HSD 170MGW1-A
Type Active Matrix TFT, TN technology
Active Size 17” Wide (367.2mm x 229.5mm)
Pixel Arrangement RGB Vertical Stripe
Pixel Pitch 0.255 mm
Glass Treatment Anti-Glare, Hard coating (3H)
# of Backlights 4 CCFL
Backlight Life 40000 Hrs (Typ) @7.5mA
250 cd/m2 (Typ after 30 minute warm up) @8.0mA Luminance (Center) –
CT = 6500K,
Contrast/ Brightness = Max
200 cd/m2 (Min after 30 minute warm up) @8.0mA
Brightness Uniformity (13 points) 75% (Typ) / 70 % (Min)
Contrast Ratio 500 :1 (Typ)
400 : 1 (Min)
Color Depth 262144 colors (6bit panel)
Horizontal Viewing Angle 140 degrees (Typ) / 130 degrees (Min) @ CR>10
Vertical Viewing Angle 130 degrees (Typ) / 120 degrees (Min) @ CR>10
Response Time
On-Off
10%-90% @ Ta=25°C 8ms (Typ) / 12 ms (Max)
Mercury 3.0 mg per lamp
Panel Defects Please see Panel Quality Specifications.
*Over 50% units of shipment shall be equal or better than the Typical value above.
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9 IMAGE PERFORMANCE
Display Size
Horizontal Display Size, Primary Preset Full Screen
Vertical Display Size, Primary Preset Full Screen
Luminance
Lv (Max) –Condition:
Brightness / Contrast = 100%
CCT = USER COLOR (R/G/B=100%)
Lv (Def) –Condition:
Brightness / Contrast = 100%
Color Temperature = 6500K / sRGB
Lv (sRGB/6500K) –Condition:
Brightness / Contrast = Default
CCT = 6500K / sRGB
Lv (9300K) –Condition:
Brightness / Contrast = Default
CCT = 9300K
Lv (5400K) –Condition:
Brightness / Contrast = Default
CCT = 5400K
Lv (Brightness) –Condition:
Contrast = 100%
Lv (Max) = The Luminance requirement of section 6
“TFT LCD PANEL”
Lv (Def) / Lv (Max) x 100% > 93%
Lv (sRGB/6500K) / Lv (Max) x 100% > 85%
Lv (9300K) / Lv (Max) x 100% >65%
Lv (5400K) / Lv (Max) x 100% > 72%
Lv(Brightness=0%) / Lv(Brightness=100%) x 100% ≤ 55%
Lv (Contrast) –Condition:
Brightness = 100%
Lv(Contrast=0%) / Lv(Contrast=100%) x 100% ≤ 35%
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Contrast Ratio
CR(Max) –Condition:
Same as the Contrast Ratio in section 6 “TFT LCD
Contrast / Brightness = 100%
PANEL ”
CCT = USER COLOR (R/G/B=100%)
CR(6500K) –Condition:
Contrast / Brightness = Default
CCT = 6500K
* ≧50% units of shipment shall be equal or better than typical CR spec.
CR(6500K) / CR(Max) ≧ 85%
Saturation
Contrast = Default
Brightness = Default
NO VISIBLE SATURATION
Test pattern = 6gray
Contrast = 100%
Brightness = 100%
12~16 - LEVEL SATURATION
Test pattern = 6gray
Preset Color Temperatures
sRGB It should meet IEC 61966-2-1 (1999-10) standard.
Preset 1
CCT (typ) = 9300K (u’CCT=0.1888; v’ CCT=0.4457)
CCT (max) = 10250K, CCT (min) = 8500K
Δu’v’<0.01 (@ Full White pattern)
Preset 2 (Primary)
CCT (typ) = 6500K (u’CCT=0.1978; v’ CCT=0.4684)
CCT (max) = 6950K, CCT (min) = 6100K
Δu’v’<0.01 (@ Full White pattern)
Preset 3
CCT (typ) = 5400K (u’CCT=0.2044; v’ CCT=0.4808)
CCT (max) = 6185K, CCT (min) = 4935K
Δu’v’<0.01 (@ Full White pattern)
Preset Color Temperature
Adjustability
* Any gray level and Contrast/Brightness should not get reddish, greenish or bluish.
Each color preset shall be adjustable. Red, Green, and Blue
shall be individually controlled.
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10 MECHANICAL
Dimension (Desktop)
Width 406.7 mm (16.01 inch)
Height (Height adjust to the bottom) 374.9mm (14.75 inch)
Depth 210.17mm (8.27 inch)
Monitor Weight 3.7 Kg (8.2 lbs)
*Refer to Figure 1
Dimension (Head Only / Wall Mount)
Width 406.7 mm (16.01 inch)
Height 293.3mm (11.54 inch)
Depth 63mm (2.48 inch)
Monitor Weight 2.9 Kg (6.38 lbs)
*Refer to Figure 1
Ergonomics
Tilt Up
≧ 20º
Tilt Down From 0º down to -3º ~ -5º
Swivel Right
Swivel Left
N/A
N/A
Height Adjust N/A
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3. Front Panel Function Control Description
3-1. Front Panel Hardware Controls
Power Switch (Front Head) Power Control, soft Power Switch.
Power LED (Front Head) Green – ON
Orange – Power Saving Mode
Dark = Soft Power Switch OFF
Front Panel Controls (Head)
[ ] [ 1 ] [ 2 ] [▲] [▼]
Reaction Time OSD must fully appear within 0.5s after pushing Button 1
3-2. Short Cuts Function from the button(s)
[1] Main Menu
[2] Input toggle (Analog or Digital; refer to Appendix D)
[▼] Brightness adjust
[▲] Contrast adjust
[▼]+ [▲] Recall both of Contrast and Brightness to default
[1] + [2] Toggle 720x400 and 640x400 mode when input 720x400 or 640x400
[ ] Power
[ 1 ] Button 1
[ 2 ] Button 2
[▲] Up arrow button
[▼] Down arrow button
Note: Power Button, Button 1 and Button 2 must be one-shot
logic operation. (i.e. there should be no cycling)
mode
[1] + [▼] + [▲] White Balance. (Not shown on user’s guide)
[1] + [▼] Power Lock
[1] + [▲] OSD Lock
No signal + [2] + [ ] Burning mode
Signal + [2] + [ ] Factory Mode
Remark : All the short cuts function are only available while OSD off
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3-3. Function descriptions
Main Menu Controls
The Main Menu OSD includes most of control functions.
Please refer to APPENDIX C (Main Menu OSD Table) for the detail.
OSD Lock short cuts function for the buttons
The OSD lock will be activated by pressing the front panel control buttons "(1), & (▲)" for 10
seconds. If the user then tries to access the OSD by pressing any of the buttons "1", "▼", "▲",
"2" a message will appear on the screen for 3 seconds showing "OSD Locked". The OSD lock
will be deactivated by pressing the front panel control buttons "(1), & (▲)" again for 10 seconds.
Note 1: When the OSD is locked will lock all functions, including “Volume” and “Mute”
Note 2: Status bar indicating OSD Lock or Unlock is in progress and when complete it will
indicate “OSD Locked”
Note 3: OSD Lock should not lock Power Button and Power Lock function .
Power Lock short cuts function for the buttons
The power button lock will be activated by pressing the front panel control buttons "(1), & (▼)" for
10 seconds. Locking the power button means that the user won't be able to turn off the LCD while
the power button is locked. If the user presses the power button while it is locked, a message will
appear on the screen for 3 seconds showing "Power Button Locked". It also means that with the
power button locked, the LCD would automatically turn back "On" when power is restored after a
power failure. If the power button is not in the locked mode, then power should return to it's
previous state when power is restored after a power failure. The power button lock will be
deactivated by pressing the front panel control buttons "(1), & (▼)" again for 10 seconds.
Note 1: Status bar indicating Power Button lock or unlock is in progress and when complete it
will indicate “Power Button Locked”
Note 2: Power should only be lockable in the “On State”
Memory Recall Actions
Memory Recall action on the analog and digital mode as below
1. Recall white balance to factory setting
2. Set the factory defaults as shown in Section 4-8
3. Clean all the mode setting buffer
4. Execute Auto Image Adjust
Note: Memory Recall should have no effect for Language, Power Lock, User Color Settings or
Input Priority
Input Signal Notice Actions
1. The Input Signal Notice OSD appears 3 seconds when power turns on or change input signal.
2. The Input Signal Notice OSD position is on the right-bottom side of image. And the OSD
background shall be transparent. (OSD Background = off).
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Resolution Notice Actions
1. Resolution Notice OSD should show on screen after changing to non-native mode for 30 sec
2. For auto input select function, it shall meet the requirement in Appendix D.
3. The OSD should disappear after 10 sec or by pushing button [1] or [2]
Resolution Notice function should be disabled when push button [2] under Resolution Notice
OSD
0-Touch™ Function Actions
1. Execute Auto Image Adjust when new mode detected, and save the settings to buffer for
further use
2. It should be reset by Memory Recall function .
(Should not reset by power off, power unplug and others)
OSD Auto Save
The OSD shall save new settings when it is turned off by the user or when it times out.
There shall not be a separate save
3-4. Factory Defaults
Item Defaults Item Defaults
Contrast 70% Input Priority N/A
Brightness 100% Resolution Notice On
Color Temperature 6500K Volume N/A
Sharpness 100% Balance N/A
OSD H. Position 50% Treble N/A
OSD V. Position 50% Bass N/A
OSD Time Out 15 720x400 / 640x400 720x400
OSD Background On
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3-5. OSD Menu Controls
Select the menu items shown below by using the up [▲] and down [▼] buttons.
Main Menu :
Auto Image Adjust :
To automatically adjust H./ V. Position, Phase adjust and Clock adjust.
REMARK: There may need to select “Manual Image Adjust” to optimized Performance for
various VGA tolerance.
Contrast / Brightness :
To adjust the Contrast of the video and the backlight currency.
REMARK: 1. These functions setting can be recalled to default by [Up] + [Dn].
2. These functions should be disabled and setting to default in sRGB Mode.
Color Adjust :
To select the color temperature sRGB, 9300°K, 7500°K ,6500°K, 5400°K or user color.
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Information:
To display the data about Horizontal / Vertical frequency, Pixel clock, Resolution ,
Model number and Serial No. of the monitor.
Manual Image Adjust:
H./V. Position: To adjust the horizontal and vertical position of the video.
H./V. Size: To adjust the horizontal and vertical pixel clock of the video.
Fine Tune: To adjust the delay time of data and clock.
Sharpness: To select the picture sharpness of display.
REMARK: This function is available under Native Resolution Mode.
Setup Menu:
Language Select: To select one of ten languages.(English, French, German, Spanish,
Italian, Finnish, Japanese, Traditional Chinese, Simplified Chinese, and
Russian)
Resolution Notice: Enable (on) : OSD will notify the best picture quality resolution change
the resolution to 1440 x 900.
OSD Position: To set OSD position.
OSD Time out: To set the displaying time of OSD ( 5” / 15” / 30” / 60” ).
OSD Background: To select video background brightness.
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Memory Recall:
Restore default settings of Clock, H./V. Position, Fine Tune, Contrast, Brightness, Color
temperature, OSD position, OSD timeout and Sharpness .
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4. Circuit Description
4-1. Power supply (DC/DC Converter)
This brick convert is the 110-220AC input voltage to 12V AND 5V output for inverter,
audio, panel and system controller use.
It consists of a PWM IC (TEA1530AT, U105)
4-2. Scaling controller
The ADC is to convert RGB analog signal to digital signal that scaling chip can
acknowledge.
The HSYNC input receives a logic signal and provides the frequency reference for
pixel clock generation.
The scaling IC is to converts the input signal ranging from VGA to WXGA.
4-3. General description
The TSUM57AK is a high performance, and fully integrated graphics processing IC
solution for LCD monitors with resolutions up to WXGA. It is configured with an integrated
triple-ADC/PLL, a high quality scaling engine, an on-screen display controller, a built-in
output clock generator, and LVDS display interface. To further reduce system costs, the
TSUM57AK also integrates intelligent power management .
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